Ferrari FXX (2005)Based on the street legal Enzo, the FXX was designed as a track only development prototype. Just 30 examples were made, with 29 being sold to selected customers and chassis number 30 being gifted to Ferraris Formula One World Champion driver, Michael Schmacher, when he retired from Formula One at the end of the 2006 season. Although based on the Enzo, the FXX is different in many respects. The 6. 3 litre V12 power unit is increased in capacity from